1. Alef, K., Nannipieri, P. (Eds.), 1995. Methods in Applied Soil Microbiology and Biochemistry, Academic Press, London.
2. Enzyme activity in soil: some theoretical and practical considerations;Burns,1978
3. Michaelis constant of soil acid phosphatase;Cervelli;Soil Biology and Biochemistry,1973
4. Fluorescence correction for measurements of enzyme activity in natural waters using methylumbelliferyl-substrates;Chrost;Archives of Hydrobiology,1986
5. Functional exoenzymes as indicators of metabolically active bacteria in 124,000-year-old sapropel layers of the eastern Mediterranean sea;Coolen;Applied and Environmental Microbiology,2000